Nightmare Dragon Priest Ft. Dragonlord, Shadowreaper, Wrathion

Your Early game consists of Potion of Madness  or Stubborn Gastropod or Shadow Word: Pain

If you don’t have those you can save up cards and play Twilight Drake or if you must. Clear the board using Duskbreaker .

Two cards that can destroy weapons in this deck is Acidic Swamp Ooze and Harrison Jones which also lets you draw

Cards to clear the board and help give you an upper hand is Duskbreaker and Dragonfire Potion  and Primordial Drake and Shadowreaper Anduin

Best combo In this deck would be Wrathion and next turn Deathwing, Dragonlord . Since this deck is filled with almost all dragons you should have almost a full hand

You’ll want to overpower your opponent with Scaled Nightmare and Cobalt Scalebane

Use Kabal Talonpriest and Power Word: Shield  to increase the HP on low health dragons like Duskbreaker or use it on Stubborn Gastropod to kill more enemy minions efficiently